. The occurence and distribution of nitrates and nitrites in food, feces and urine. 1 8018 43 25—28 1637 159 .2 8050 44 1625 127 .1 8060 45 tiay 3—6 1656 8101 46 ? 7-10 1404 189 .5 8107 47 ? 11-14 1775 8136 48 15-18 1732 8173 49 19-22 1349 297 • 4 8187 50 n 23-26 1206 8208 51 27-30 1140 8242 52 n 1605 8254 53 June 4-7 1258 8293 54 If O T T 8-11 1 «j 13 3301 55 12-15 1291 8334 56 16-19 1204 8355 57 20*27 886 8370 58 24-27 1005 22
. The occurence and distribution of nitrates and nitrites in food, feces and urine. 1 8018 43 25—28 1637 159 .2 8050 44 1625 127 .1 8060 45 tiay 3—6 1656 8101 46 ? 7-10 1404 189 .5 8107 47 ? 11-14 1775 8136 48 15-18 1732 8173 49 19-22 1349 297 • 4 8187 50 n 23-26 1206 8208 51 27-30 1140 8242 52 n 1605 8254 53 June 4-7 1258 8293 54 If O T T 8-11 1 «j 13 3301 55 12-15 1291 8334 56 16-19 1204 8355 57 20*27 886 8370 58 24-27 1005 . • . Average 1456 » . •. Minimum 886 127 .4 • • • • Maximum 2193 297 .4 8406 59 1122 none 8433 60 July 2-5 1178 79 .3 tt 8457 61 6-9 949 t! 8483 62 10-13 811 tt 8491 63 14-17 1403 ff 8533 64 18-21 1155 ft 8546 65 ft fin o7 60~ii f 1272 ff 8573 66 26-29 1078 ff • • • • Average 1121 none * • • • Minimum 811 tt • • • • Maximum 1403 tt. 95 REFERENCES. (1) Blyth,, Poods,Their Composition and Analysis, Page 242-MilK, causes of nitrates in, M 308-Cheese, nitrates in, « 454-Wine-Causes of nitrate in, 495-Pepper, nitrates found in various varieties, 527-Discussion of methods, (2) Casselmann una Neubauer, Zeit. f. Anal. Chem.,9,1870, Methods of saltpeter analysis* (3) Checkevich,I., Amer. Chem. Soc., Abst•, Vol. 3,, 1909. The Role of the Denitrifying Properties of the Cholera andSimiliar Vibrios V,*hen Administered Per 0s. (4) Deherain and Maquenne, Berichte, 15, p. 3081 The Reduction Of Nitric Acid By Micro-Organisms. (5) Deutsches Nahrungsmittel Buch, Page 133 The Effect Of Saltpeter. (6) Egger,E.,Chem. Cent., 1885,p. 71, Percentage of Nitrates in Wine. Methods for the Analysis of Nitrates in Wine. (7) Farrington and Woll, Testing of Milk and Dairy Products. Page 224-Nitrates not found in normal milk. (8) Flugge, Die Micro-organ
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